2.23.2007

One of the more interesting new discoveries about chimps is that they appear to use spears to hunt for smaller primates. This comes on top of earlier discoveries that some groups use stones for cracking nuts.

This would seem to indicate that tool using in hominids goes back much further than though, possibly before the homo genus. Unfortunately, there's no chance of simple wooden spears like those the chimpanzees make lasting millions of years, so we may never know for certain.